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    Process for the preparation of composite polymers containing active hydrogen atoms
    5.
    发明公开
    Process for the preparation of composite polymers containing active hydrogen atoms 失效
    一种生产含活性原子氢的组合物的聚合物的过程。

    公开(公告)号：EP0063832A1

    公开(公告)日：1982-11-03

    申请号：EP82200430.5

    申请日：1982-04-07

    申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

    发明人： Chadwick, John Clement ,  Van Ballegooijen, Hendrik

    IPC分类号： C08G18/63 ,  C08F283/00

    CPC分类号： C08F283/00 ,  C08G18/63

    摘要： Composite polymers, especially composite polyols containing active hydrogen atoms can be prepared by polymerizing one or more olefinically unsaturated compounds in the presence of a liquid polymer containing active hydrogen atoms and a modified initiator; the modification comprising the reaction between a liquid polymer containing one or more groups which can react with isocyanate groups and a compound containing two or more isocyanate groups which has been partially converted by reacting it with an organic hydroperoxide or a free-radical initiator also containing additional active hydrogen atoms. The composite polymers exhibit a stable dispersed polymer phase and can be suitably applied as starting materials for polyurethane foams.

    Solid alpha-olefin polymerization catalyst components
    7.
    发明公开
    Solid alpha-olefin polymerization catalyst components 失效
    Fester Katalysatorbestandteilfürdie Olefinpolymerization。

    公开(公告)号：EP0398439A2

    公开(公告)日：1990-11-22

    申请号：EP90201234.3

    申请日：1990-05-15

    申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

    发明人： Chadwick, John Clement ,  Ruisch, Bart Johan

    IPC分类号： C08F4/654 ,  C08F10/00

    CPC分类号： C08F10/00 ,  C08F4/6548

    摘要： A process for preparing a solid catalyst component which comprises halogenating a magnesium compound in the formula MgRR¹.nCO₂ in which R and R¹ are the same or different alkoxy or phenoxy groups and n is a number of from 0 to 2 with a halide of tetravalent titanium in the presence of dialkylester of a dihydric aromatic carboxylic acid and an inert hydrocarbon diluent by reacting at a temperature of from 120 to 136 °C and recovering the solid reaction product from the reaction mixture.

    摘要翻译： 一种制备固体催化剂组分的方法，其包括卤化式MgRR 1·nCO 2中的镁化合物，其中R和R 1是相同或不同的烷氧基或苯氧基，n是0-2的数 在二元芳族羧酸和惰性烃稀释剂的二烷基酯存在下，通过在120-136℃的温度下反应并从反应混合物回收固体反应产物，得到四价钛的卤化物。

    Preparation of spherical magnesium alkoxide particles
    9.
    发明公开
    Preparation of spherical magnesium alkoxide particles 失效
    球形氧化镁颗粒的制备

    公开(公告)号：EP0216402A3

    公开(公告)日：1988-07-20

    申请号：EP86201333

    申请日：1986-07-30

    申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

    发明人： Chadwick, John Clement ,  van der Sar, Jacob Cornelis

    IPC分类号： C07C29/70 ,  C08F04/64 ,  C08F10/00

    CPC分类号： C08F10/00 ,  C08F4/654

    摘要： A process for preparing spherical particles of a compound with the general formula Mg(OR) 2-a (OR') a in which R is an alkyl group with from 2 to 8 carbon atoms, R' is an alkyl group with from 1 to 7 carbon atoms and a is a number of from 0 to 0.5, which comprises preparing a homogeneous solution of a compound Mg(OR)₂ in an aliphatic alcohol with the general formula R'OH spray-drying the solution at a temperature of from 15 to 85 °C, suspending the spray-dried solid particles in an aliphatic alcohol with the formula ROH in which R is the same alkyl group as present in the said compound Mg(OR)₂ heating the suspension in order to remove an alcohol with the formula R'OH from the liquid phase by distillation and separating the solid particles from the liquid phase.